Question

which of the following statements most accurately describes an aspect of healthy lymphatics in the breast and axilla region?
the central nodes drain into each of the other 3 groups of nodes.
each of the 4 major groups of nodes is palpable by an experienced clinician.
the nodes of the breasts and axillae are a closed system.
the pectoral nodes are the group that is most anterior.

Explanation:

In the breast and axilla region, the pectoral nodes are located most anteriorly among the groups of lymph - nodes. Central nodes receive lymph from other groups, not the other way around. Not all 4 major groups of nodes are always palpable. The lymphatic system is not a completely closed system as it has connections with the circulatory system.

Answer:

The pectoral nodes are the group that is most anterior.